Driving Fatigue Measurements (Score 1)

Given that the face tracking system (the two cameras facing you) can tell if you are falling asleep, (The system was originally designed for driver fatigue studies - looking for things like blink frequency/duration and head-nodding), I would have thought that the potential to save lives would be quite high - especially for those people who work on the roads for a living. (HGV drivers, bus drivers, travelling salesmen, etc...) - I could imagine (in the distant future), a similar device replacing the cardboard-disk tachographs found in HGVs. (How much more effective would it be to prevent someone from driving when they were actually tired, rather than according to a fixed number of hours-on-the-road and so on?) BTW - I have to admit to some bias, as I work for one of SeeingMachine's distributors. (SeeingMachines is the Australian company behind the FaceLAB system - go check them out, the technology is pretty cool - Machine Vision, finally coming of age!)